5 x TL072CD - Low noise JFET dual operational amplifiers - TL072C - TEXAS

5 x TL072IDR - Low-Noise FET-Input Operational Amplifiers - SOIC-8 - TL072I

1 x MC33079P - DUAL/QUAD LOW NOISE OPERATIONAL AMPLIFIERS - MOTOROLA

5 x TL082C - JFET-INPUT OPERATIONAL AMPLIFIERS - MOTOROLA

SFC2201 Operational amplifier Tres rare

LM747CN Dual Operational Amplifier

3 x LM358N - DUAL DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS - MOTOROLA

OPA2374AIDCNT – Dual 5.5V 6.5MHz RRIO operational amplifier - ATP - TEXAS